1 |
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2 |
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3 | const MAX_STACK_DEPTH = 1000
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4 |
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5 | export function createWriteFunction (
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6 | write: (text: string, next: Function) => boolean,
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7 | onError: Function
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8 | ): Function {
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9 | let stackDepth = 0
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10 | const cachedWrite = (text, next) => {
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11 | if (text && cachedWrite.caching) {
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12 | cachedWrite.cacheBuffer[cachedWrite.cacheBuffer.length - 1] += text
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13 | }
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14 | const waitForNext = write(text, next)
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15 | if (waitForNext !== true) {
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16 | if (stackDepth >= MAX_STACK_DEPTH) {
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17 | process.nextTick(() => {
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18 | try { next() } catch (e) {
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19 | onError(e)
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20 | }
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21 | })
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22 | } else {
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23 | stackDepth++
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24 | next()
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25 | stackDepth--
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26 | }
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27 | }
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28 | }
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29 | cachedWrite.caching = false
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30 | cachedWrite.cacheBuffer = []
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31 | cachedWrite.componentBuffer = []
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32 | return cachedWrite
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33 | }
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